*{
	margin: 0px;
	padding: 0px;
}
.header {
	text-align: center;
	font-weight: 700;
}
button, input, select{
	width: 100%;
}
.left-box{
	vertical-align: top;
	width: 150px;
}
.right-box {
	vertical-align: top;
	width: 200px;
	font-size: 12px;
}
#canvas{
	width: 800px;
	height: 400px;
	margin: auto;
	background: #fafafa;
}
.node{
	width: 40px;
	height: 40px;
	text-align: center;
	line-height: 40px;
	border-radius: 50%;
}
.in{
	width: 40px;
    height: 40px;
    background-size: 95%;
    background-repeat: no-repeat;
    background-position: center;
}
.car {
	background-image: url(../img/car.png);
}
.board {
	background-image: url(../img/board.png);
}
.fly {
	background-image: url(../img/fly.png);
}
.custom {
	border: 1px solid #333;
	border-radius: 50%;
}
.option {
	display: none;
}